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HP C2858A Service Manual

HP C2858A Service Manual

Drafting plotters
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HP C2858A/C2859A
DRAFTING PLOTTERS
This manual applies directly to HP C2858A and C2859A
plotters with serial numbers prefixed USA.
For additional information about serial numbers, see
SERIAL NUMBER INFORMATION in Chapter 1.
EHEWLETT-PACKARD COMPANY 1993
SAN DIEGO, CALIFORNIA 92127-1899
C2858-90000
HEWLETT
PACKARD

SERVICE MANUAL

SERIAL NUMBERS
16399 W. BERNARDO DRIVE
Printed: March 1993

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  • Page 1: Service Manual

    PACKARD SERVICE MANUAL HP C2858A/C2859A DRAFTING PLOTTERS SERIAL NUMBERS This manual applies directly to HP C2858A and C2859A plotters with serial numbers prefixed USA. For additional information about serial numbers, see SERIAL NUMBER INFORMATION in Chapter 1. EHEWLETT-PACKARD COMPANY 1993 16399 W.

  • Page 2: Using This Manual

    Using this Manual This service manual contains information necessary to test, adjust, and service the Hewlett-Packard Models C2858A and C2859A DesignJet 650C plotters. It is designed to help you easily find the cause of a C2858A/C2859A hardware problem and to perform the necessary repairs and adjustments to get the plotters into proper operating condition.
  • Page 3 Chapter 4. Preventive Maintenance Chapter 4 contains information you will need to keep the plotters in their best operating condition. Included are procedures that can be performed by the user. Chapter 5. Functional Overview This chapter contains a simplified description of the plotter circuits and mechanical functions.

  • Page 4: Table Of Contents

    ..........HP-IB Interface .

  • Page 5: Chapter Page

    Chapter Page Loading Roll Media ..........Unloading Roll Media .
  • Page 6 Chapter Page Removal and Replacement Introduction ............Safety Considerations .
  • Page 7 Chapter Page Cutter Enclosure Assembly Removal ....... . 6-49 Entry Platen Assembly Removal .
  • Page 8 Chapter Page Product History Introduction ............History of Assemblies by Serial Number .
  • Page 9 General Definitions of Safety Symbols International caution symbol (refer to manual): the product will be marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect against damage to the instrument.

  • Page 10: Product Information

    Product Information INTRODUCTION This chapter contains a listing of documentation supplied with the HP C2858A and C2859A DesignJet 650C plotters. Also provided are: descriptions of the plotters, information on the plotter features, options and accessories, performance characteristics, and plotter serial number information.

  • Page 11: Description

    (Japanese tracing) paper, vellum, or special inkjet-compat- ible drafting film. Quality color output is only supported when using HP special inkjet paper. C2858/9A DesignJet 650C plotters can produce plots on single-sheet media or roll-feed me- dia.
  • Page 12 Figure 1-1. The standard HP C2858/9A DesignJet 650C has four megabytes of on-board random access memory (RAM). Memory expansion upgrades to 20 MB are available as well as various ROM enhancement and modular I/O options. Other features that are standard include:...

  • Page 13: Options

    PostScript ROM Kit = P/N C2882A MODULAR INPUT/OUTPUT (MIO) PCAs Interface circuitry is provided on the plotters which allows the user to install HP supported modular I/O (MIO) cards for several interface applications. Although multiple protocols may reside on an MIO, they are not simultaneously supported, only one protocol at at time can be used.

  • Page 14: Accessories

    English or U.S. will differ. Accessories available for use with the C2858/9A DesignJet 650C plotters are listed in the Supplies Catalog. Table 1-1. Accessories Supplied Description HP Part Number C2858A/C2859A Manual Kit (English) C2858–90051 includes: Using Your Plotter’s Front Panel...

  • Page 15: Performance Characteristics

    Table 1-2. Performance Characteristics Accuracy "0.38 mm (0.015 in.) or "0.2% of the specified vector length, whichever is greater at 23 _C (73 _F) at 50-60% RH, on HP film (monochrome mode only). Throughput D-sized loaded vertically: plain paper special paper...

  • Page 16: Site Planning And Requirements

    Site Planning and Requirements INTRODUCTION This chapter contains information concerning the electrical requirements for the installation of HP C2858A and C2859A plotters. Also included is information on environmental operat- ing conditions and physical specifications for the plotters. Introduction ............

  • Page 17: Electrical Specifications

    ELECTRICAL SPECIFICATIONS POWER REQUIREMENTS HP C2858A and C2859A DesignJet 650C plotters have self-adjusting power supplies and do not require voltage selector or switch settings prior to use. Table 2-1 lists the power require- ments for the plotters. Table 2-1. Power Requirements...

  • Page 18: Environmental Specifications

    ENVIRONMENTAL SPECIFICATIONS Table 2-2 lists environmental specifications for the plotters. Table 2-2. Environmental Specifications Temperature –40 to +70 _C (–40 to +158 _F) Storage 0 to +55 _C (+32 to +131 _F) Operating +15 to +30 _C (+59 to +86 _F) Optimal Operating Relative Humidity (Operating) 20 to 80 % RH...

  • Page 19: Cable Restrictions

    Interface. HP-IB INTERFACE The HP-IB (Hewlett-Packard Interface Bus) allows up to 15 devices to be connected. The maximum cable length is restricted to 2 metres (6.6 ft.) per device up to a total of 20 metres (65.8 ft.). The devices may be connected in a star or linear bus network.

  • Page 20: Installation And Configuration

    INTRODUCTION This chapter contains the information required to configure and verify proper operation of the HP C2858A and C2859A DesignJet 650C plotters. Print cartridge and media loading pro- cedures, as well as front panel menu structures, are also provided. Introduction .

  • Page 21: Installation Instructions

    DesignJet 650C documentation listed in Chapter 1 of this manual. LINE VOLTAGE AND FUSING The HP C2858/9A DesignJet 650C plotter’s power supply automatically adjusts to the input voltage. The plotter’s autoranging power supply accepts an input of 90 to 264 Vac.
  • Page 22 Option No. BS 1363A 250 Vac, 13 A, Single Phase plug rating. For use in United Kingdom, Cypress, Nigeria, Zimbabwe, Singapore. AS C112 250 Vac, 10 A, Single Phase plug rating. For use in Australia, New Zealand. CEE 7–VII 250 Vac, 10/16 A, Single Phase plug rating. For use in East and West Europe, Egypt.

  • Page 23: User Information And Operation

    USER INFORMATION AND OPERATION MEDIA GUIDELINES Guidelines on media handling are: The leading edge must be straight and each side must be loaded evenly. If the leading edge is jagged, trim it with the media knife (located in the manual holder at the back of the plotter) using the track on top of the plotter as a guide.

  • Page 24: Media Cutting And Stacking

    Real-time switching between plotting modes is not supported. If the user selects another mode while plotting, the plotter waits until the current plot is finished and then switches to the newly selected mode. MEDIA CUTTING AND STACKING Automatic and manual cutting of plots is available on the C2858/9A. In roll media opera- tions, the user can choose between continuous plotting or cutting plots off the roll automati- cally as they are completed.

  • Page 25: Usable Media Sizes

    USABLE MEDIA SIZES Media of different types and sizes can be used on the plotters. Refer to Table 3-1 for the media sizes usable on each plotter. Table 3-1. Media Sizes C2858A C2859A ISO A4 - A1 ISO A4 - A0 ANSI A - D ANSI A - E ARCH A - D...
  • Page 26 (C) C2847-10(UM) Removing the Media Stop and Endcap Figure 3-2. (C) C2847-16(UM) Sliding the New Roll onto the Spindle Figure 3-3. Installation and Configuration...
  • Page 27 3. Open the roll cover and insert the spindle, with the endcap at the left and the media stop at the right. Firmly push on both ends. See Figure 3-4. Roll Cover Pinchwheel Lever (C) C2847-31(UM) Installing the Spindle Figure 3-4. 4.
  • Page 28 Cutting Track (C) C2847-7(UM) Trimming the Leading Edge of the Media Figure 3-5. Insert Media Until it Buckles Evenly Align Media with Perforation Line (C) C2847-15(UM) Loading the Leading Edge of the Media Figure 3-6. 10. When the front panel displays “Sheet load/Roll load,” press the Down Arrow button to select “Roll load.”...

  • Page 29: Unloading Roll Media

    the media so that they are flush with the left and right edges of the roll. See Figure 3-7. (C) C2847-97a(UM) (C) C2847-97(UM) Aligning the Left and Right Edges of the Media Figure 3-7. 14. When the front panel instructs you, lower the pinchwheel lever. The plotter checks to make sure the roll is properly aligned.

  • Page 30: Loading Sheet Media

    LOADING SHEET MEDIA To load sheet media, perform the following steps: 1. Ensure that the pinchwheel lever is down and the roll cover is closed. 2. Load the leading edge of the sheet making sure to push the sheet in straight (not skewed) while aligning the right edge of the sheet with the perforated line on the entry platen.

  • Page 31: Unloading Sheet Media

    If difficulty in loading sheet media is experienced, an alternate method of loading is possible. Do the following: 1. Ensure that the pinchwheel lever is down and the roll cover is closed. 2. Raise the window on the plotter. 3. Insert the sheet into the plotter until the leading edge hits the stops inside the platen area.

  • Page 32: Pen Checking

    PEN CHECKING Ink usage for cartridges may vary depending upon the ratio of color versus monochrome plotting and the extent of each color used. Cartridge replacement is necessary only when any of the following conditions occur: Pen Checking is ON and you elect to replace the cartridges when the plotter prompts you.

  • Page 33: Accessing Pens

    Figure 3-9 shows you how to visually check the ink level in a cartridge. Label color indicates ink color. Green area will diminish as ink is dispensed. Replace pen when area is all black. Checking the Ink Level Figure 3-9. ACCESSING PENS Press the Access Pens button to access the pen carriage when you need to replace, reseat, or clean pens.
  • Page 34 1. Press the Access Pens button. The pen carriage moves out from the pen service sta- tion at the left of the plotter and stops in front of the slot in the bail. 2. When the pen carriage stops and the display reads “Open window to access pens,” open the window.

  • Page 35: Selectable Ink-Drying Times

    6. Remove the protective tape from the new pen. Insert the pen into the empty pen slot. 7. Press down slightly and push the pen away from you until it snaps into the pen slot. See Figure 3-11. Installing a Pen Figure 3-11.

  • Page 36: Configuration

    CONFIGURATION FRONT PANEL CONTROLS Plotter set-up and plot management functions are input through the front panel. The front panel contains a 2-row by 20-character vacuum fluorescent display. Menu scrolling and im- plementation are accomplished through 4 menu buttons. Plotting modes are initiated through the color/monochrome select buttons and print quality buttons.
  • Page 37 Front panel controls and LEDs are described below. Menu buttons: Previous Use the Previous button to move to the next highest level and to return to the “Status” display. Use the up-arrow and down-arrow buttons to scroll through menu options or respond to action or error messages.
  • Page 38 Action buttons: Cancel stops current operation (plotting, accuracy calibration, Cancel Form Feed/Cut Access Pens Pause pen alignment and media loading). Form Feed/Cut advances the page and, if roll media, cuts it. Access Pens brings the pen carriage out to the Pause stops plotter after plotting area for pen access.

  • Page 39: Front Panel Menus

    (plot size, memory size, firmware revision level, ROM SIMMs present) and default menu options. Complete information on using the various menu and submenu options is contained in the HP C2858A and C2859A DesignJet 650C Using Your Plotter’s Front Panel Guide. Additional setup information is available in the DesignJet 650C Setting Up For Plotting Guide.

  • Page 40: Front Panel Languages

    FRONT PANEL LANGUAGES DesignJet 650C plotter menus and messages can be configured to display in English, French (“Francais”), German (“Deutsch”), Spanish (“Castell.”), Italian (“Italiano”), Portuguese (“Portuguese”) and Japanese (Katakana) characters. To change the display language, or if the display is in a language you cannot understand, use the following procedure to get to a language you do understand.

  • Page 41: Front Panel Messages

    FRONT PANEL MESSAGES In addition to the menus that appear in the front panel display, three types of messages may also appear in the display. They are state messages, action messages, and error messages. State messages do not require any action and serve to notify the user of any current plotter actions occurring.
  • Page 42 Table 3-2. State Messages (Continued) Message State Pen palette The pen source, pen number widths, and pen number shades you just en- saved tered have been saved as either Palette A or Palette B (whichever you specified). Returning pens The pen carriage is returning to its station at the left of the plotter. Roll feed Machine is trimming the edge of roll media.
  • Page 43 Table 3 3. Action Messages Message Action Special Media Press Up Arrow for Color plotting on Special (CX) paper. Mono Media Press Down Arrow for Monochrome plotting. Calibrate done Accuracy calibration is complete. Press Down Arrow to continue. Continue Can’t replot Replot buffer doesn’t have enough memory to hold the entire plot.
  • Page 44 Table 3 3. Action Messages (Continued) Message Action Pull / Align Grasp the left and right free edges of the roll media and pull toward edges to roll you until the media is taut. At the same time, align the left and right edges of the media so that they are flush with the left and right edges of the roll.

  • Page 45: Operational Verification

    Chapter 8 of this manual. Self tests are listed in Chapter 8. DEMONSTRATION PLOT Two demonstration plot samples are resident in the HP DesignJet 650C plotters. Proper plot- ter operation can be checked through use of the demo plots. The demo plots show different plotter capabilities including pen line widths and shading.

  • Page 46: Preventive Maintenance

    Chapter 4 Preventive Maintenance INTRODUCTION This chapter contains information on keeping the HP C2858A and C2859A DesignJet 650C plotters in good operating condition. Included are general cleaning procedures to be per- formed by the user. Introduction ............

  • Page 47: Effect On Product Reliability

    EFFECT ON PRODUCT RELIABILITY To maintain the plotter in good operating condition, keep it free of dust accumulation, ink, and other contamination. Cleaning intervals are determined by the local conditions under which the plotter is operated and by the types of plotter supplies used. As with any precision electronics equipment, proper maintenance will help to ensure reliability and prolong prod- uct life.

  • Page 48: Drive Roller Cleaning

    DRIVE ROLLER CLEANING The drive roller cleaning procedure should be W A R N I N G performed only by service-trained personnel; otherwise personal injury may occur. If ink is spilled on the drive roller, remove the ink. Due to the ink’s reflectance, ink on the roller can disrupt the plotter’s edge-sensing function.
  • Page 49 Note The speed of the drive roller can be reduced or speeded up by pressing the appropriate arrow button. 11. Apply any common household cleaning solution (e.g. BonAmi aerosol, Simple Green) to a soft, lint-free rag and apply it to the drive roller surface while it is rotat- ing.

  • Page 50: Functional Overview

    Chapter 5 Functional Overview INTRODUCTION This chapter contains a simplified description of the HP C2858A and C2859A DesignJet 650C plotters circuits and mechanical functions. Mechanical and Printed Circuit Assembly (PCA) overviews present a functional description of how the plotter operates.

  • Page 51: Simplified Description Of Circuits

    Centronics or an RS-232-C interface. If an approved modular input/output (MIO) printed circuit assembly (PCA) is installed, the circuits can communicate by way of an HP- IB interface or be connected to a network. The main processor reads Centronics, HP-IB, and Ethernet communications through the port it uses to read memories (ROM or DRAM).

  • Page 52: Mechanical Overview

    The servo processor controls the servo motors, front panel, fan, electrically erasable read-on- ly memory (EEROM), and the stepper drive. It sends configuration information to the car- riage processor via its serial port. The EEROM stores plotter calibration and configuration information while power is OFF.
  • Page 53 An internal cooling fan is supplied with +12 V. It is switched ON and OFF by the servo pro- cessor and is mounted in the electronics enclosure at the rear of the plotter. The fan is primari- ly used to cool the power supply PCA when plotting. When the plotter is not plotting, the fan is switched OFF.

  • Page 54: Printed Circuit Assembly (Pca) Overview

    PRINTED CIRCUIT ASSEMBLY (PCA) OVERVIEW MAIN PCA There are two clocks on the main PCA. The main clock provides a 31.85 MHz signal directly to the main processor. The 31.85 MHz is divided by the main processor, and the resulting signal is provided to the processor support ASIC.

  • Page 55: Carriage Pca

    CARRIAGE PCA The carriage PCA contains an application-specific, integrated circuit (ASIC) that controls the operation of the pens and pen drivers that switch power pulses from the ASIC to fire the pens. It also provides feedback to the main PCA as to the current position of the carriage as- sembly.

  • Page 56: Interconnect Pca

    The dual-voltage, remote sense circuitry sends a + or – sense signal to the dual voltage regu- lators on the interconnect PCA when the voltage to the print heads deviates from the opti- mum pen voltages. The regulator will then adjust the voltage to bring it back to the optimum value.

  • Page 57: Drop And Bail Sensors

    DROP AND BAIL SENSORS The drop sensor is located in the drop detect assembly. Its purpose is to detect ink drops dur- ing pen testing. The drop sensor contains a detector system capable of detecting the presence of a drop shortly after one is fired into the detector. In order for the drop to be fired into the detector, the pen must be positioned over the sensor.

  • Page 58: Removal And Replacement

    Removal and Replacement INTRODUCTION This chapter contains repair information including safety and ESD precautions, a list of tools required for plotter repair and procedures for the removal and replacement of HP DesignJet 650C field replaceable assemblies. Introduction ............
  • Page 59 Service Station Assembly Removal ....... . . 6-44 Overdrive Support Assembly Removal .

  • Page 60: Safety Considerations

    SAFETY CONSIDERATIONS The Safety Symbols used with Hewlett-Packard instruments are illustrated in the front mat- ter of this manual. WARNING and CAUTION symbols and instructions must be reviewed before service work is performed. These warnings and cautions must be followed for your protection and to avoid damage to the plotter.

  • Page 61: Required Tools

    REQUIRED TOOLS Tools required to disassemble and repair the HP DesignJet 650C plotters are listed in Table 6-1. Table 6 1. Tools Required Item Size Torx Screwdriver with bits T8, T9, T10, T15, T20, T25, T30 Screwdriver, flat-blade Small Nut Drivers 1/4 in., 3/16 in., 5.5 mm (or 7/32 in.)

  • Page 62: Dram Simm And Rom Module Removal

    DRAM SIMM AND ROM MODULE REMOVAL To install or remove and replace a module, perform the following steps: 1. Using a small flat blade or Torx T10 screwdriver, remove the four screws that attach the cover plate to the back of the plotter and remove the cover plate. See Figure 6-1. Cover Plate (C)C2858-32 Figure 6-1.

  • Page 63: Mio Card Removal

    MIO CARD REMOVAL To install or remove and replace an MIO card, refer to Figure 6-2 and perform the following steps: 1. If an MIO card is not already installed, use a small flat blade or Torx T10 screwdriver to remove the two screws that attach the cover plate to the top back of the plotter. Remove the cover plate.

  • Page 64: Electronics Enclosure Cover Removal

    ELECTRONICS ENCLOSURE COVER REMOVAL To remove the electronics enclosure cover, perform the following procedure: 1. Switch the plotter OFF and disconnect the ac power cord and interface cable from the plotter. 2. If a modular input/output (MIO) card is installed, remove the MIO from the plotter. 3.

  • Page 65: Interconnect Pca Removal

    INTERCONNECT PCA REMOVAL To remove the interconnect PCA, refer to Figure 6-4 and perform the following steps: 1. Remove the electronic enclosure cover. Note The cable connectors disconnected in the next step are labeled “P” for paper axis and “C” for carriage axis. Note the orientation of the cable connectors for assembly.

  • Page 66: Main Pca Removal

    MAIN PCA REMOVAL To remove the main PCA, perform the following procedure: 1. Remove the electronic enclosure cover. 2. Remove the interconnect PCA. 3. Using a 3/16” nut driver, remove the two screws on top of the electronics enclosure from the RS-232-C connector. 4.
  • Page 67 Screws (12) Nuts (C)C2858-44 EPROMs RS-232-C Parallel X-axis Encoder Media Sensor Trailing Power Dist. Pinch Wheel Sensor Drop Cable Sensor Interconnect PCA Front Panel Main PCA Cable Connectors (L)C2858-3 Figure 6-5. Removal and Replacement 6-10...

  • Page 68: Outer Electronics Enclosure Assembly Removal (C2858A Only)

    OUTER ELECTRONICS ENCLOSURE ASSEMBLY REMOVAL (C2858A ONLY) To remove the outer electronics enclosure assembly, perform the following procedure: 1. Remove the electronics enclosure cover. 2. Disconnect all the cables from the PCAs shown in Figure 6-6. 3. Using a Torx T-15 screwdriver, remove the bottom three, and loosen the top three, electronics enclosure assembly screws shown in Figure 6-6.

  • Page 69: Power Supply Pca Removal

    POWER SUPPLY PCA REMOVAL To remove the power supply PCA, perform the following procedure: 1. Remove the electronics enclosure cover. 2. For model C2858A plotters, remove the outer electronics enclosure assembly. 3. Remove the flexible, DANGER HIGH VOLTAGE, protective cover from the elec- tronics enclosure.

  • Page 70: Fan Removal

    FAN REMOVAL To remove the fan, refer to Figure 6-8 and perform the following procedure: 1. Remove the electronic enclosure cover. 2. Disconnect the fan connector at the main PCA. 3. For model C2858A plotters, remove the outer electronics enclosure assembly. 4.

  • Page 71: Window Assembly Removal

    WINDOW ASSEMBLY REMOVAL To remove the window assembly, perform the following steps: 1. Using a TORX T-15 screwdriver, remove the left and right rear trim pieces from the plotter. 2. Using a TORX T-15 screwdriver, remove the two screws that connect the window assembly to the back panel.

  • Page 72: Endcovers (Left And Right) Removal

    ENDCOVERS (LEFT AND RIGHT) REMOVAL To remove the endcovers, perform the following procedure: 1. Raise the plotter window to the open position. 2. Remove the window assembly. 3. Lower the rollfeed cover to the open position. 4. Using a TORX T-15 screwdriver, remove the two front screws that connect each endcover and front sideplate trim to the plotter.
  • Page 73 Left Front Trim Right Front Trim Screw Screw Screw Screw (C)C2858-37 (C)C2858-38 (C)C2858-33 (C)C2858-34 Bottom Right Screw (hidden) Bottom Left Screw (hidden) Figure 6-10. Removal and Replacement 6-16...

  • Page 74: Primer Assembly And Sensor Removal

    PRIMER ASSEMBLY AND SENSOR REMOVAL To remove the primer assembly and sensor, perform the following steps: 1. Remove the window assembly. 2. Remove the left endcover. 3. Disconnect the primer assembly and sensor cable connector. 4. Disconnect the four rubber tubes from the primer assembly. 5.

  • Page 75: Pinch Wheel Sensor Removal

    PINCH WHEEL SENSOR REMOVAL To remove the pinch wheel sensor, perform the following procedure: 1. Remove the electronic enclosure cover. 2. Remove the right endcover. 3. Disconnect the pinch wheel sensor cable connector from the main PCA. 4. Pull the pinch wheel sensor cable clear of any clamps. 5.

  • Page 76: Window Sensor Removal

    WINDOW SENSOR REMOVAL To remove the window sensor, perform the following procedure: 1. Remove the right endcover. 2. Disconnect the window sensor cable connector from the front panel PCA. 3. Using a TORX T-8 screwdriver, remove the two screws that attach the window sen- sor to the right sideplate and lift the sensor clear of the plotter.

  • Page 77: Media Sensor Removal

    MEDIA SENSOR REMOVAL To remove the media sensor, perform the following steps: 1. Remove the electronics enclosure cover. 2. Disconnect the media sensor cable connector from the main PCA. 3. Remove the right endcover. 4. Using a TORX T-10 screwdriver, remove the screw that attaches the media sensor to the entry platen.

  • Page 78: Trailing Cable Removal

    TRAILING CABLE REMOVAL While removing the trailing cable, see Figure 6-15. To remove the trailing cable, perform the following procedure: 1. Remove the window assembly. 2. For models C2858A, remove the main PCA. For models C2859A, remove the outer electronics enclosure assembly. 3.
  • Page 79 Toroid Toroid Endcaps Trailing Cable (C)C2858-62 Trailing Cable Rear Tray Screws (5) (C)C2858-42 Carriage PCA Trailing Cable Connector Bracket Screw (C)C2858-77 Figure 6-15. Removal and Replacement 6-22...

  • Page 80: Back Panel Removal

    BACK PANEL REMOVAL To remove the back panel, perform the following procedure: 1. Remove the window assembly. 2. Using a TORX T-15 screwdriver, remove the 5 screws that attach the trailing cable rear tray to the back panel. 3. Using a TORX T-15 screwdriver, remove the screws that attach the back panel to the electronics enclosure assembly.

  • Page 81: Front Panel Removal

    FRONT PANEL ASSEMBLY REMOVAL To remove the front panel assembly, perform the following procedure: 1. Remove the right endcover. 2. Disconnect the window sensor connector and the front panel cable connector from the front panel assembly. See Figure 6-17. 3. Release the front panel cable from the clamp on the front panel assembly. 4.

  • Page 82: Carriage Motor Removal

    CARRIAGE MOTOR REMOVAL To remove the carriage motor, perform the following steps: 1. Remove the right endcover. 2. Remove the electronics enclosure cover. 3. Disconnect the carriage motor cable connector (labeled C) from the interconnect PCA. 4. Press the small drive belt against the tensioner wheel in the belt tensioner to loosen the belt and slide the belt off of the motor gear.

  • Page 83: Paper Motor Removal

    PAPER MOTOR REMOVAL Note The drive roller gear and paper motor must be replaced at the same time. To remove the paper motor and drive roller gear, perform the following procedure: 1. Remove the right endcover. 2. Remove the electronics enclosure cover. 3.
  • Page 84 Mark must face toward front of plotter when paper motor is Paper Motor fully installed Encoder Connector Drive Roller Gear Paper Motor Worm Gear (C)C2858-47a Front View Motor Screws (2) (C)C2858-66 Figure 6-19. Removal and Replacement 6-27...

  • Page 85: Encoder Strip Removal

    ENCODER STRIP REMOVAL To remove the encoder strip, refer to Figure 6-20 and perform the following steps: 1. Remove the window assembly. 2. Remove the left and right endcovers. Do not damage the encoder strip. Lay the encoder strip W A R N I N G on a flat surface when it is not in the plotter.
  • Page 86 Nut and Washer Ground Strap Service Station Left Side (C)C2858-76 Nut and Washer Encoder Spring Encoder Spring Bracket Encoder Strip Right Side (C)C2858-47a Figure 6-20. Removal and Replacement 6-29...

  • Page 87: Rollfeed Cover Assembly Removal

    ROLLFEED COVER ASSEMBLY REMOVAL To remove the rollfeed cover assembly, perform the following procedure: 1. Lower and hold the rollfeed cover about halfway open. While removing each screw in step 2, relieve the spring W A R N I N G tension slightly by holding the spring with one hand to avoid possible personal injury.

  • Page 88: Rollfeed Module Assemblies (Left And Right) Removal

    ROLLFEED MODULE ASSEMBLIES (LEFT AND RIGHT) REMOVAL To remove the left or right rollfeed module assembly, perform the following procedure: 1. Remove the appropriate left or right endcover as required. 2. Remove the rollfeed cover assembly. 3. Using a TORX T-20 screwdriver, remove the three screws that secure the rollfeed module assembly to the sideplate.

  • Page 89: Cutter Assembly Removal

    CUTTER ASSEMBLY REMOVAL To remove the cutter assembly, refer to Figure 6-23 and perform the following steps: 1. Remove the right endcover. 2. Using a 5.5 mm nut driver, remove the nut and washer that hold the right end of the encoder strip to the encoder strip spring-bracket.
  • Page 90 Bottom Finger of Slider Rod Cutter Assembly Bushing Starguard Upper Wheels Cutter Blade Linear Blade Lower Wheels Side View Overdrive Support Assembly (C)C2858-55 Starguard Cutter Blade Cutter Assembly Right Pre-load Arm Overdrive Support Assembly (C)C2858-66 Linear Cutter Blade Front View Figure 6-23.

  • Page 91: Trailing Cable Guide Removal

    TRAILING CABLE GUIDE REMOVAL To remove the trailing cable guide, perform the following steps: 1. Remove the left and right endcovers. 2. Using a TORX T-15 screwdriver, remove the screw that attaches the ground strap and trailing cable guide to the tensioner housing. See Figure 6-24. Exercise care to avoid damaging the ferrite ring during C A U T I O N this procedure.
  • Page 92 Trailing Cable Guide Front Guide Screw Tensioner Housing (C)C2858-53 Left Side Ferrite Ring Trailing Cable Guide Screw (Inside Ring) Y-drive bracket (C)C2858-73 Right Side Figure 6-24. Removal and Replacement 6-35...

  • Page 93: Y-Tensioner And Housing Removal

    Y-TENSIONER AND HOUSING REMOVAL To remove the Y-tensioner and housing, perform the following procedure: 1. Remove the left endcover. 2. Slide the pen carriage a few inches towards the center of the plotter in order to access the tensioner. 3. Remove the trailing cable guide screw which attaches the guide to the tensioner housing.
  • Page 94 Main Idler Trailing Cable Guide Guide Screw Y-Tensioner Housing Y-Tensioner Spring Y-Tensioner Housing Screw Y-Tensioner Bracket Tensioner Plate Screw Y-Tensioner Tensioner Plate (C)C2858-53 Figure 6-25. Removal and Replacement 6-37...

  • Page 95: Pen Carriage Assembly And Main Drive Belt Removal

    PEN CARRIAGE ASSEMBLY AND MAIN DRIVE BELT REMOVAL To remove the pen carriage assembly, see Figure 6-26 and perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Disconnect the trailing cable from the carriage PCA. 4.
  • Page 96 Carriage PCA Trailing Cable Bracket Trailing Cable Connector (C)C2858-77 Encoder Strip Encoder Strip Spring Nut & Washer Encoder Strip Encoder Strip Bracket Small Drive Belt Cutter Assembly Y-Drive Bracket (C)C2858-47a Figure 6-26. Removal and Replacement 6-39...

  • Page 97: Drop Detect And Bail Sensors Removal

    DROP DETECT AND BAIL SENSORS REMOVAL To remove the drop detect or bail sensor, refer to Figure 6-27 and perform the following procedure: 1. Remove the window assembly. 2. Remove the left endcover. 3. Move the pen carriage to the middle of the platen. 4.
  • Page 98 Service Station Cover Sled Drop Detect Sensor (C)C2858-78 Bail Sensor Screws (4) Service Station Housing Figure 6-27. Removal and Replacement 6-41...

  • Page 99: Starguard Assembly Removal

    STARGUARD ASSEMBLY REMOVAL To remove the starguard assembly, perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the cutter assembly. 4. Remove the front panel assembly. 5. Using a TORX T-20 screwdriver, loosen the upper of the two screws that attach the the starguard assembly to the left and right sideplates until the ends of the screws are flush with the inner surfaces of the sideplates.

  • Page 100: Bail Assembly Removal

    BAIL ASSEMBLY REMOVAL To remove the bail assembly, perform the following procedure: 1. Raise the window and move the pen carriage assembly to the extreme left. 2. Slide the cutter assembly to the extreme right. 3. Using a TORX T-15 screwdriver, remove the three screws at the left and right ends of the bail that attach the bail to the left and right bail brackets.

  • Page 101: Service Station Assembly Removal

    SERVICE STATION ASSEMBLY REMOVAL To remove the service station assembly, see Figure 6-30 and perform the following procedure: 1. Remove the window assembly. 2. Remove the left endcover. 3. Move the pen carriage to the center of its travel. 4. Using a 5.5 mm nut driver, remove the nut and washer that attach the ground strap and encoder strip to the service station housing.
  • Page 102 To install the sled during reassembly, see Figure 6-30 and do the following: 1. Set the sled springs to their full upright position with the curved part of the springs resting against the stops inside the service station housing. 2. Feed the rubber tubes through the slot in the bottom of the service station housing while lowering the sled into position.
  • Page 103 Wiper Sled (C)C2858-79 Sled Rubber Tubes Through Sled Springs: (middle tubes between springs, outer tubes outside of springs) Tubes Through Slot In Bottom Of Service Station Housing (C)C2858-80 Stops Sled Springs Drop Detect Sensor Bail Sensor (C)C2858-81 Figure 6-30. (page 2 of 2) Removal and Replacement 6-46...

  • Page 104: Overdrive Support Assembly Removal

    OVERDRIVE SUPPORT ASSEMBLY REMOVAL To remove the overdrive support assembly, perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the encoder strip. 4. Remove the front panel assembly. 5. Remove the cutter assembly. 6.
  • Page 105 Overdrive Assembly Shaft Overdrive Assembly Clutch Shoulder Screw Overdrive Cluster Gear (C)C2858-10 Clutch Retainer Overdrive Support Mount Left Side Screw (C)C2858-14 Overdrive Support Mount Right Side Screw (C)C2858-12 Figure 6-31. Removal and Replacement 6-48...

  • Page 106: Cutter Enclosure Assembly Removal

    CUTTER ENCLOSURE ASSEMBLY REMOVAL To remove the cutter enclosure assembly, perform the following procedure: 1. Using a TORX T-15 screwdriver, remove the screws that attach the front trim pieces to the left and right sideplates. Remove the front trim pieces. 2.
  • Page 107 (C)C2858-71 Media Guides C2858A (3) Cutter Enclosure Assembly C2859A (4) Upper Screw Left Side Wedge Screw (C)C2858-31b Upper Screw Right Side Wedge Screw (C)C2858-3 Figure 6-32. Removal and Replacement 6-50...

  • Page 108: Entry Platen Assembly Removal

    ENTRY PLATEN ASSEMBLY REMOVAL To remove the entry platen assembly, perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the electronics enclosure cover. 4. Disconnect the media sensor cable from the main PCA. 5.
  • Page 109 5. When correctly installed, the right side of the entry platen will be against the right sideplate and the top of the platen should be against the top reference pins in the left and right sideplates. Left Side Wedge Screw Top Screw (C)C2858-31b Pinch Arm...

  • Page 110: Drive Roller Assembly Removal

    DRIVE ROLLER ASSEMBLY REMOVAL While removing the drive roller assembly, see Figure 6-34. To remove the platen roller assembly, perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the encoder strip. 4.
  • Page 111 Drive Roller Assembly Drive Roller Gear Left Side (C)C2858-10 Screws (2) Right Side Paper Drive Motor Drive Roller Worm Gear (C)C2858-49c Paper Motor Screws (3) Drive Roller Collar Screws (2) Drive Roller Bearing (C)C2858-3 Axial Bias Plate (C)C2858-27 Figure 6-34. Removal and Replacement 6-54...

  • Page 112: Automatic Bail Lift Mechanism Removal

    AUTOMATIC BAIL LIFT MECHANISM REMOVAL To remove the bail lift mechanism, perform the following steps: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the encoder strip. 4. Remove the bail assembly. 5. Remove the overdrive support assembly. 6.

  • Page 113: Media Diverter Removal

    MEDIA DIVERTER REMOVAL To remove the media diverters, perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the encoder strip. 4. Remove the bail assembly. 5. Remove the overdrive support assembly. 6.

  • Page 114: Pinch Arm And Lift Mechanism Removal

    PINCH ARM AND LIFT MECHANISM REMOVAL To remove the pinch arm lift mechanism, perform the following procedure: 1. Remove the window assembly. 2. Remove the left and right endcovers. 3. Remove the encoder strip. 4. Remove the bail assembly. 5. Remove the overdrive support assembly. 6.
  • Page 115 To install, place the pinch arm assembly spring into its bushing. Insert the front end of the spring into the hole in the pinch arm assembly with the pinch arm 90 degrees from its normal position. Press the pinch arm assembly back and rotate it to the vertical position. Then slide the cam bar to the right until the pinch arm assembly is captured in the chassis.

  • Page 116: Introduction

    Chapter 7 Adjustments/Calibrations INTRODUCTION This chapter describes any adjustments and/or calibration procedures to be performed on Models C2858A and C2859A DesignJet 650C plotters. Also provided is a listing of when each procedure is required. Introduction ............Adjustments .

  • Page 117: Adjustments

    ADJUSTMENTS There are no electrical or mechanical adjustments required on the HP C2858A and C2859A DesignJet 650C plotters. CALIBRATIONS DesignJet 650C plotters have several calibration procedures that must be performed under certain conditions. Refer to Table 7-1 to determine when calibrations are required.

  • Page 118: Sheet Length Calibration

    All calibration procedures are accessible through the front panel menu structure. Procedures accessed by users are available through the “Utilities” main menu. These procedures include Pen Alignment and Accuracy submenus. The Accuracy submenu contains two lower subme- nus, Restore Factory settings and Recalibrate procedures. The Config Plot function, also lo- cated in the “Utilities”...

  • Page 119: Accuracy Calibration

    ACCURACY CALIBRATION Performance of these accuracy procedures allow you to either restore the plotter to the facto- ry accuracy settings or to recalibrate the plotter to the current environment. Accuracy calibra- tion constants are stored in the plotter EEROM. When performing the accuracy calibration from the “Service Test”...
  • Page 120 3. Press Enter at the “Status” display. 4. Use the arrow buttons to scroll to the “Utilities” main menu. Press Enter. If not already set to Full menu mode, scroll to Full and press Enter. 5. User accuracy: Scroll to the “Accuracy” submenu. Press Enter. Service accuracy: Simultaneously press the Enter and Up Arrow buttons.

  • Page 121: Media Sensor Calibration

    MEDIA SENSOR CALIBRATION This procedure calibrates the optical media sensor threshold value stored in the EEROM. The value represents what the sensor should detect without media present. Perform the media sensor calibration whenever the: the EEROM is cleared or replaced media sensor is replaced plotter does not recognize that media is present plotter tries to load media when none is present...

  • Page 122: Drop Detect Calibration

    DROP DETECT CALIBRATION In this procedure, the position of the drop detect sensor relative to the four print cartridges is calibrated. Four values are calculated and stored in the plotter EEROM. Perform the drop detect calibration whenever the: the EEROM is cleared or replaced drop detect sensor is removed or replaced pen checking algorithm continues to reject pens service station is removed or replaced...

  • Page 123: Edge Sensor Calibration

    EDGE SENSE CALIBRATION The edge sense calibration is used to calibrate the intensity of the line sensor in the carriage PCA. A flag is cleared and set in the EEROM after the calibration and is used until recali- brated. An improper calibration can result in edge detection failures during media loading. The pen alignment procedure is also performed as a part of this calibration.

  • Page 124: Bail Calibration

    BAIL CALIBRATION In this procedure, the ‘up’ position of the bail assembly is calibrated. A value is stored in the EEROM when the procedure is completed. Perform the bail calibration whenever the: the EEROM is cleared or replaced the bail falls during media loading Bail Calibration is accessible through the “Service Tests”...
  • Page 125 Notes Adjustments/Calibrations 7-10...

  • Page 126: Introduction

    Chapter 8 Troubleshooting INTRODUCTION This chapter contains diagnostic instructions, error codes and messages, service tests, and troubleshooting information for use as an aid in solving Model C2858A and C2859A De- signJet 650C plotter symptoms and failures. Introduction ............Diagnostics .

  • Page 127: Diagnostics

    POWER-ON SELF TESTS HP C2858A/9A DesignJet 650C plotters will automatically perform a series of internal self tests, as well as certain initialization sequences, whenever the plotter is switched ON. These self test and initialization sequences are described in the following paragraphs. As the plotter moves through the tests, a series of dots will quickly appear on the display.

  • Page 128: Mechanical Initialization

    a. The EEROM checksum is tested. If this portion of the test fails, clear or re place the EEROM and run the calibration adjustments described in chapter 7. If replacing the EEROM and running the adjustments does not fix the problem, replace the main PCA.

  • Page 129: Error Messages And Codes

    ERROR MESSAGES AND CODES Two types of error messages can be viewed in the front panel display: Worded error messages System error codes WORDED ERROR MESSAGES Worded error messages indicate that a user error or an internal error has occurred. Some error messages require action to clear, and others are only displayed until the next operation is per- formed by the plotter.
  • Page 130 Table 8-1. Worded Error Messages (Continued) Message Error/Action Media too small Media loaded for accuracy calibration or pen alignment is too small. Reload appropriate media. Mispositioned Roll is mispositioned. Unload roll media. Open the roll cover Reload roll and push the media roll all the way to the right so that it is flush against the media stop on the roll core.
  • Page 131 Table 8-1. Worded Error Messages (Continued) Message Error/Action Roll misaligned Roll media is skewed. Unload roll media. Open the roll cover Reload roll and push the media roll all the way to the right so that it is flush against the media stop on the roll core. Reload, making sure that the left/right media edges are even with the left/right roll core edges.

  • Page 132: System Error Codes

    SYSTEM ERROR CODES System error codes are hexadecimal-based numbers generally caused by internal system er- rors. See Table 8-2 for a list of system error codes and their respective descriptions and rec- ommended corrective actions. Table 8-2. System Error Codes Error Code Problem Description Corrective Actions...
  • Page 133 Table 8-2. System Error Codes (Continued) Error Code Problem Description Corrective Actions 010024 Pen interface ASIC test Replace main PCA. failure. 010025 Communication failure Replace main PCA. between the main and servo processors. Communication occurs through the processor support ASIC. Servo interrupts not 010026 Replace main PCA.
  • Page 134 Firmware problem. Bad For all 2XXXX errors, report the 020002 EPROMS. firmware problem to the HP Response Center or the nearest HP Sales and Support Office. Note conditions before the error occurred. Include system configuration in the report. 030000 X-axis shutdown.
  • Page 135 Drop detect calibration, found in the service menu to recalibrate the position of the sensor. Check the drop sense cable connections. Replace the drop sensor. 0f0000 Firmware error. Notify the HP Response Center or the nearest HP Sales and Support Office. Troubleshooting 8-10...

  • Page 136: Display Data Plot

    DISPLAY DATA PLOT Display data is a plot feature, located under the “Utilities Menu’, that allows you to plot the first and last 1000 bytes of graphic instructions of a plot file sent. This feature can be used to ensure proper data reception. The instructions will be plotted in ASCII. format. To use the Display Data feature, do the following: 1.

  • Page 137: Troubleshooting Tips

    TROUBLESHOOTING TIPS Certain failures, such as the media sensor and pinchwheel sensor, will not allow access to the service menu after the normal initialization process occurs. The front panel will be locked at this point. To alleviate this situation, perform the following steps: 1.

  • Page 138: Service Tests

    SERVICE TESTS HP DesignJet 650C plotters have numerous internal service tests that can be used in trouble- shooting. To access the service tests menu, perform the following steps: 1. Switch the plotter ON. Note Certain plotter failures that can occur will prevent the plotter from reaching the “STATUS Ready for Media”...

  • Page 139: Edge Sensor Calibration

    Table 8-3. Service Tests Test Description Assemblies Tested EEROM (Clear) Allows you to either clear or test the EEROM EEROM. Clearing defaults all set-up values, Main PCA clears calibration values and calculates a new EEROM checksum. The EEROM should only be cleared in event of a checksum failure.
  • Page 140 Table 8-3. Service Tests (Continued) Test Description Assemblies Tested Parallel I/O The data and status registers of the Centronics Main PCA PAL are read. A successful test completes very quickly (<1 s). “PASS TEST PRESS ENTER” will be indicated. If the test fails, the system will hang up.
  • Page 141 Table 8-3. Service Tests (Continued) Test Description Assemblies Tested Primer Verifies the ability of the primer to select Pens individual pens and run the pump for testing Primer Assembly priming capability. Also tests the optical Optical Sensor sensor’s ability to initialize the primer cam. Pen Continuity Checks for proper interconnection between all Pens...
  • Page 142 Table 8-3. Service Tests (Continued) Test Description Assemblies Tested Cover Sensor Verifies the operation of the window interlock Window Sensor microswitch. After the test is selected, Switch manually raise and lower the window The Sensor Switch display should change as the window is raised Path to Main and lowered.
  • Page 143 Table 8-3. Service Tests (Continued) Test Description Assemblies Tested Cutter Verifies operation of the cutter. Allows either Cutter Assembly single or continuous cut operation. An offset Pen Carriage/ value can be entered to determine how much Cutter Assembly margin the cutter system has. Operation Rotary Blade Overdrive...

  • Page 144: Configuration Plot

    CONFIGURATION PLOT The configuration plot aids in the analysis of plotter problems by providing: a hardclip border around the plot so the margins can be measured. unique patterns for use in detecting pen nozzle problems, pen to pen align ment problems, ink flow problems and vertical line straightness. four, X shaped marks (crosshairs) for measuring plotter pen to pen accuracy (The centers of the crosshairs should be 500 mm apart) .

  • Page 145: Bar Pattern Analysis

    10. The “busy” LED on the front panel will light to show that a configuration plot is being generated, the pens will be tested at the service station, and the configuration plot will automatically run to completion. BAR PATTERN ANALYSIS The configuration plot has several special diagnostic features built in.

  • Page 146: Reading The Eerom Text Block

    READING THE EEROM TEXT BLOCK Contents of the EEROM IC are printed during the configuration plot in hexadecimal form. Sample portions of the EEROM contents block and the pen nozzle test block are presented in the following pages of this chapter to assist you in interpreting the configuration plot results. To read the EEROM contents block, perform the following steps.
  • Page 147 Table 8-4. EEROM Map Address Definition Location EEROM Initialized A (Value 55) (Read by Servo Processor) EEROM Initialized B (Value AA) (Read by Servo Processor) EEROM Initialized C (Value 5B) (Read by Servo Processor) Power-up Mode FP General Byte FP PostScript Byte EEROM Pen C DT Offset EEROM Baud Byte EEROM Handshake Byte...
  • Page 148 Table 8-4. EEROM Map (Continued) Address Definition Location EEROM Page Count High EEROM PostScript Block 1 Start EEROM PostScript Block 1 End EEROM Pen Source Byte EEROM Pen Palette Byte EEROM Flag Byte EEROM Media Sense Threshold EEROM Flag Byte 2 EEROM Flag Byte 3 EEROM Plotsetup Byte EEROM Flag Byte 4...
  • Page 149 Table 8-4. EEROM Map (Continued) Address Definition Location EEROM Pen 1, Pen 2 First Nozzle EEROM New Align EEROM Platen Factory EEROM Platen User EEROM Cut Count Low EEROM Cut Count High EEROM Pen K DT Offset EEROM Pen M DT Offset EEROM Bail Errors Bail Up Pos Offset EEROM Page Format Byte...
  • Page 150 A sample portion of the memory location key is provided in Table 8-5. Use it as a key to the EEROM memory text block on the configuration plot. The first column depicts the block of text shown on the plot and in Table 8-6, but the remaining blocks show the memory location number instead of the contents at each position on the text block.
  • Page 151 The block of text on the configuration plot that shows the contents of the EEROM appears in the form shown in Table 8-6. This table is a sample portion of the text block from a configura- tion plot. The contents of the EEROM that you are testing may differ from this sample. Table 8-6.

  • Page 152: Introduction

    Product History INTRODUCTION This chapter describes the differences between earlier versions of the HP C2858A/C2859A DesignJet 650C plotters and the latest version documented in this manual. Versions are iden- tified by their serial number and the date codes on their printed-circuit assemblies (PCAs).

  • Page 153: History Of Assemblies By Serial Number

    HISTORY OF ASSEMBLIES BY SERIAL NUMBER C2858A and C2859A plotters use a serial number format as follows: USAxxyyyyy where; US indicates country of manufacture, A indicates the plotter revision level, xx indi- cates the month (1-9, A, B, C) and week (1-4) of manufacture, and the remaining digits (y-y) are the individual sequential numbers of the plotters as they are manufactured.
  • Page 154 HISTORY OF PRINTED-CIRCUIT ASSEMBLIES Hewlett-Packard’s PCAs have three major identification features: Part Number. PCAs having the same part number are directly interchangeable. If a PCA is revised in any way that makes it non-interchangeable with previously issued PCAs of a particular part number, a new part number is assigned to the revised PCA.
  • Page 155 Notes Product History...

  • Page 156: Introduction

    Parts and Diagrams INTRODUCTION This chapter contains information for locating, identifying and ordering replacement parts for the HP C2858A and C2859A plotters. Parts lists with associated illustrated parts break- down drawings are provided. Introduction ............

  • Page 157: Exchange Assemblies

    The total quantity for each part on the drawing is given as well as the part number and check digit (CD). To obtain replacement parts, address an inquiry to the nearest HP Sales and Support Office. The order must include the part number, check digit and part description. Also include the plotter model and serial number on the parts order.
  • Page 158 Left Endcover and Trim C2858A Electronics Enclosure Assembly Right Endcover and Trim See Page 10-13. See Page 10-11. See Page 10-15. Carriage Axis Drive C2859A Electronics Enclosure Assembly Carriage Axis Drive See Page 10-9. (Left End) (Right End) See Page 10-19. See Page 10-23.
  • Page 159 Parts List, Stand Assemblies Ref. HP Part Description Des. Number C2847-60002 LEG ASSEMBLY MODEL C2858A C2848-60002 MODEL C2859A C2847-00013 STAND BRACE MODEL C2858A C1633-00046 MODEL C2859A C2847-60061 HARDWARE KIT 0515-0380 SCREW, MACH M4X10 1492-0145 CASTER ASSEMBLY C2847-00006 MEDIA BIN (FRONT)
  • Page 160 Stand Assemblies, Illustrated Parts Breakdown (C)C2858–1–1 Parts and Diagrams 10-5...
  • Page 161 Parts List, Window and Back Cover Assemblies Ref. HP Part Description Des. Number C2858-60024 CABLE ASSEMBLY, TRAILING 0620-0520 SCREW, 6-19 0.50 07575-40012 HINGE, MALE 07575-40111 HINGE, FEMALE C2847-60008 BLADE RUNNER ASSEMBLY MODEL C2858A C1633-60053 MODEL C2859A C2847-00009 COVER, FIXED, Y-ARM...
  • Page 162 To Main PCA To Pen Carriage Electronics Enclosure C2858A See Page 10-9. C2859A See Page 10-11. Window and Back Cover Assemblies, Illustrated Parts Breakdown (C)C2858-2-1 Parts and Diagrams 10-7...
  • Page 163 Parts List, C2859A Electronics Enclosure Ref. HP Part Description Des. Number 0515-1249 SCREW, MACH C2858-60105 PCA, INTERCONNECT 156474 IC EEROM (U42) C2065A SIMM 4MB (OPTION: SEE CHAPTER 1) C2066A SIMM 8MB (OPTION: SEE CHAPTER 1) C2847-40007 BARRIER, SIMM 0535-0043 NUT, HEX M4X 0.7...
  • Page 164 C2859A Electronics Enclosure, Illustrated Parts Breakdown (C)C2858-3-1 Parts and Diagrams 10-9...
  • Page 165 Parts List, C2858A Electronics Enclosure Ref. HP Part Description Des. Number C1633-40059 GUIDE, MIO SUPPORT 0515-0380 SCREW, MACH M4X10 C1633-00033 SUPPORT, MIO 0515-1249 SCREW, MACH C2858-60105 PCA, INTERCONNECT C2847-60004 ENCLOSURE, OUTER (MAIN PCA) C1633-00031 COVER, MIO 0515-2246 SCREW, TORX/SLOT M3...
  • Page 166 C2858A Electronics Enclosure, Illustrated Parts Breakdown (C)C2858-4-1 Parts and Diagrams 10-11...
  • Page 167 Parts List, Left Endcover and Trim Ref. HP Part Description Des. Number C2858-40013 ENDCOVER ASSEMBLY, LEFT C2858-00018 LABEL, SERIAL NUMBER SIDEPLATE (part of chassis assembly, see page 10-32) C2858-40028 TRIM, LEFT REAR 0515-2254 SCREW, FLAT M4X16 0515-2304 SCREW/BOLT METRIC 0515-2250...
  • Page 168 Left Endcover and Trim, Illustrated Parts Breakdown (C)C2858-5-1 Parts and Diagrams 10-13...
  • Page 169 Parts List, Right Endcover and Trim Ref. HP Part Description Des. Number 0515-2250 SCREW, FLAT, TAPTITE M4 0515-2254 SCREW, FLAT M4X16 C2858-40025 TRIM, RIGHT FRONT C2858-40027 TRIM, RIGHT REAR 0515-2304 SCREW/BOLT METRIC SIDEPLATE (part of chassis assembly, see page 10-32)
  • Page 170 Right Endcover and Trim, Illustrated Parts Breakdown (C)C2858-6-1 Parts and Diagrams 10-15...
  • Page 171 Parts List, Rollfeed Components Ref. HP Part Description Des. Number C2847-60013 ROLLCOVER ASSEMBLY MODEL C2858A C1633-60064 MODEL C2859A C2847-80001 SPRING, ROLLCOVER MODEL C2858A C1633-80004 MODEL C2859A 0515-2253 SCREW, TAPTITE W/WASHER M3 C1633-20021 SCREW, SHOULDER 0380-3073 SPACER, SPRING C2847-60033 SPINDLE ASSEMBLY...
  • Page 172 Rollfeed Components, Illustrated Parts Breakdown (C)C2858-7-1 Parts and Diagrams 10-17...
  • Page 173 Parts List, Carriage Axis Drive (Left End) Ref. HP Part Description Des. Number C2847-00029 BELT, MAIN DRIVE MODEL C2858A 1500-0856 MODEL C2859A 07570-60105 MAIN IDLER ASSEMBLY 07570-40105 TENSIONER, MAIN 1460-2139 SPRING, COMP 1.07 OD C1633-40065 HOUSING, MAIN TENSIONER 0515-0380 SCREW, MACH M4X10...
  • Page 174 Service Station See Page 10-21. Carriage Axis Drive (Left End), Illustrated Parts Breakdown (C)C2858-8-1 Parts and Diagrams 10-19...
  • Page 175 Parts List, Service Station Assembly Ref. HP Part Description Des. Number C2858-60006 CABLE ASSEMBLY, BAIL SENSOR C1633-40051 FLAG, BAIL SENSOR C2858-60005 BAIL SENSOR C2858-40001 SERVICE STATION HOUSING C2858-40032 WIPER, SERVICE STATION C1676-40167 CAP, SERVICE STATION C2858-40002 SLED, SERVICE STATION C2858-40003...
  • Page 176 Service Station Assembly, Illustrated Parts Breakdown (C)C2858-9-1 Parts and Diagrams 10-21...
  • Page 177 Parts List, Carriage Axis Drive (Right End) Ref. HP Part Description Des. Number C2858-60023 PEN CARRIAGE ASSEMBLY (SEE PAGE 10-25) C2847-00029 BELT, MAIN DRIVE MODEL C2858A 1500-0856 MODEL C2859A C2858-00028 TRAILING CABLE TRAY, FRONT MODEL C2858A C2859-00005 MODEL C2859A 9170-1536...
  • Page 178 Pen Carriage Assembly See Page 10-25. Carriage Axis Drive (Right End), Illustrated Parts Breakdown (C)C2858-10-1 Parts and Diagrams 10-23...
  • Page 179 Parts List, Pen Carriage Assembly Ref. HP Part Description Des. Number C2858-60023 PEN CARRIAGE ASSEMBLY C2858-40016 BUSHING, FRONT C1633-80014 SPRING, PRELOAD C2858-40017 BUSHING, REAR 0624-0737 SCREW, 2-28 X .375 PLASTITE C2858-60010 IC–ENCODER ASSEMBLY C2858-60014 LINE DETECT ASSEMBLY 07575-40013 LEFT CLAMP, MAIN BELT...
  • Page 180 Pen Carriage Assembly, Illustrated Parts Breakdown (C)C2858-11-1 Parts and Diagrams 10-25...
  • Page 181 Parts List, Paper Drive Assemblies Ref. HP Part Description Des. Number C2847-00041 PLATEN ENTRY MODEL C2858A C2848-00010 MODEL C2859A C2858-60054 PLATEN, ROLLER ASSEMBLY MODEL C2858A C2859-60004 MODEL C2859A 0515-2246 SCREW, TORX/SLOT M3 0515-2337 SCREW, LONG DOGPOINT 0515-0380 SCREW, MACH M4X10...
  • Page 182 Paper Drive Assemblies, Illustrated Parts Breakdown (C)C2858-12-1 Parts and Diagrams 10-27...
  • Page 183 Parts List, Bail and Overdrive Support Assemblies Ref. HP Part Description Des. Number C1633-80006 SPRING, ENGAGING LEVER 0624-0647 SCREW, TAPPING, 4-20 3050-0026 WASHER, 3.2MM C1633-40028 GEAR, ENGAGING LEVER C1633-40027 GEAR, CAM C2847-40013 LEVER, ENGAGING 0510-0083 RETAINER, RING 0.25 DIA C1633-20021...
  • Page 184 Bail and Overdrive Support Assemblies, Illustrated Parts Breakdown (C)C2858-13-1 Parts and Diagrams 10-29...
  • Page 185 Parts List, Pincharm Assembly Ref. HP Part Description Des. Number 0515-1992 SCREW, M2.5X20 C1633-40029 CAM, JOURNAL 0535-0026 NUT, HEX, DBL-CHAM C2847-20005 CAM, MANUAL PINCHARM LIFT MODEL C2858A C1633–20012 MODEL C2859A C1633-60039 PINCHARM ASSEMBLY MODEL C2858A MODEL C2859A C1633–80005 SPRING, PINCHARM...
  • Page 186 Pincharm Assembly, Illustrated Parts Breakdown (C)C2858-14-1 Parts and Diagrams 10-31...
  • Page 187 Parts List, Starwheel, Starguard and Chassis Assemblies Ref. HP Part Description Des. Number 0515-2337 SCREW, LONG, DOGPOINT 0515-2304 SCREW/BOLT METRIC 0515-2333 SCREW, THRD RLLG C2847-60009 STARGUARD ASSEMBLY MODEL C2858A C1633-60032 MODEL C2859A C1633-60051 STARWHEEL ASSEMBLY MODEL C2858A MODEL C2859A C2858-00014...
  • Page 188 Starwheel, Starguard and Chassis Assemblies, (C)C2858-15-1 Illustrated Parts Breakdown Parts and Diagrams 10-33...
  • Page 189 Labels Label Name Part Number Media Bin Front C2847-00036 Serial Number C2858-00018 Name Plate C2858-00017 Roll Loading C1633-00084 Carriage Warning C1633-00104 Power Supply Insulator C1633-00105 Carriage Stripes C1633-00107 Media Loading C1633-00131 Pen Alignment C1633-90009 Pen Color Code C2858-00019 Trailing Cable C2858-60024 C2847-60019 Carriage PCA...
  • Page 190 The way in which computer equipment and software is interconnected and set up to operate as a system. address The address specifies the plotter’s location on the HP-IB (IEEE-488) interface continuous memory Plotter memory which cable (bus). stores certain plotter conditions even when the plotter is turned off.
  • Page 191 Electronic Industries which a separate wire is used for each data bit Association Standard 488-1978. in a byte or word and all bits are transferred simultaneously. HP-IB and Centronics are initialize To set plotter conditions to known parallel interfaces. default values.
  • Page 192 Index Index...
  • Page 193 Index...
  • Page 194 Index...
  • Page 195 Index...
  • Page 196 Index...
  • Page 197 Index...
  • Page 198 bar code here C2858 90000 PRINTED IN U.S.A.

This manual is also suitable for:

C2859a

Table of Contents